You can read a passive RFID from about 30 meters with the right equipment.
"Right equipment" is probably very load bearing. Wouls need a very high gain directional antenna, not sure if a camera next to the road has the space to pick this up from a moving car.
alt Hacker News
"Right equipment" is probably very load bearing. Wouls need a very high gain directional antenna, not sure if a camera next to the road has the space to pick this up from a moving car.